import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/params.vue'
import GoodsList from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'

Vue.use(VueRouter)

const router = new VueRouter({
  routes: [
    {path:'/',redirect:'/login'},
    {path:'/login',component:Login},
    {
      path: '/home',
      component: Home,
      redirect:'/welcome',
      children: [
        { path:'/welcome', component:Welcome },
        { path:'/users', component:Users },
        { path:'/rights', component:Rights },
        { path:'/roles', component:Roles },
        { path:'/categories', component:Cate },
        { path:'/params', component:Params },
        { path:'/goods', component:GoodsList },
        { path:'/goods/add', component:Add },
        { path:'/orders', component:Order },
        { path:'/reports', component:Report}
      ]
    },
  ]
})
//挂载路由导航守卫
router.beforeEach((to, from, next) => {
  //${to and from are Route Object,next() must be called to resolve the hook}
  //to 将要访问的路径
  //from 代表从哪个路径跳转而来
  //next 是一个函数,表示放行
  if(to.path==='/login')return next();
  //获取token
  const tokenstr = window.sessionStorage.getItem('token')
  if(!tokenstr)return next('/login')
  next()
})

export default router
